US4885977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized line-of-sight aiming system for use with fire control systems
Assignee: STATE OF ISRAEL - MINISTRY OF DEFENCE ARMAMENT DEVELOPMENT AUTHORITY RAFAEL PO BOX 2082 HAIFA ISRAEL
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Filing: 1988-01-06
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Granted: 1989-12-12
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Expires: 2008-01-06
Abstract
Abstract A fire control system for gunnery weapons having a powered gun positioningystem, a stabilized line-of-sight aiming system comprising: housing apparatus having a fixed orientation with respect to the gun boresight; stabilized electro-optical system apparatus for viewing a target along a stabilized line-of-sight, the stabilized electro-optical system apparatus being contained within the housing apparatus; and apparatus for sensing the azimuth and elevation angles of the line-of-sight relative to the housing apparatus, the sensed angles being provided to the gun positioning system for complete position determination of the gun relative to the stabilized line-of-sight.
Inventors
- 👤 Yoram Kirson
- 👤 Itsak Marom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:11
CPC Classifications
F; F41; F41G; F41G5/00; F41G5/14; F41G3/00; F41G3/22
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
In a fire control system for gunnery weapons having a powered gun positioning system and including a gun barrel having a boresight, a stabilized line-of-sight aiming system comprising: stabilized electro-optical means for viewing a target along a stabilized line-of-sight, said stabilized electro-optical means being fixedly supported with respect to said boresight; means for sensing the azimuth and elevation angles of said line-of-sight relative to said boresight; and means for slaving said gun barrel in accordance with said line-of-sight by employing the azimuth and elevation angles measured by said means for sensing.
Claim 2
Dependent Claim
91 words
In a fire control system for gunnery weapons having a powered gun positioning system and including a gun barrel having a boresight, a stabilized line-of-sight aiming system comprising: stabilized electro-optical means for viewing a target along a stabilized line-of-sight, said stabilized electro-optical means being fixedly supported with respect to said boresight; means for sensing the azimuth and elevation angles of said line-of-sight relative to said boresight; and means for slaving said gun barrel in accordance with said line-of-sight by employing the azimuth and elevation angles measured by said means for sensing.
Claim 3
Dependent Claim
20 words
The aiming system of claim 1 wherein said stabilized electro-optical means is rigidly mounted directly on a tank gun mantlet.
Claim 4
Dependent Claim
18 words
The aiming system of claim 1 wherein said stabilized electro-optical means is directly mounted on the gun barrel.
Claim 5
Dependent Claim
15 words
The aiming system of claim 1 wherein the line-of-sight is stabilized by free gyro stabilization.
Claim 6
Dependent Claim
32 words
The system of claim 4 wherein said means for sensing the direction of the line-of-sight in relation to said boresight comprises two precision angular sensors, one for azimuth and one for elevation.
Claim 7
Dependent Claim
16 words
The aiming system of claim 1 wherein said stabilized electro-optical means includes a day/night viewing system.
Claim 8
Dependent Claim
35 words
The aiming system of claim 1 wherein said stabilized electro-optical means includes an autotracker to facilitate aiming and to measure the angular velocity of the line-of-sight when firing on the move and on moving targets.
Claim 9
Dependent Claim
99 words
In a fire control system for gunnery weapons having a powered gun positioning system and including a gun barrel having a boresight, a method of determining the gun position relative to a stabilized line-of-sight, said method comprising the steps of: fixedly supporting stabilized electro-optical means for viewing a target along a stabilzed line-of-sight with respect to said boresight; sensing the azimuth and elevation angles of said stabilized line-of-sight relative to the gun boresight; and slaving the gun barrel in accordance with the orientation of said line-of-sight by employing the azimuth and elevation angles measured by said means for sensing.
Claim 10
Dependent Claim
99 words
In a fire control system for gunnery weapons having a powered gun positioning system and including a gun barrel having a boresight, a method of determining the gun position relative to a stabilized line-of-sight, said method comprising the steps of: fixedly supporting stabilized electro-optical means for viewing a target along a stabilzed line-of-sight with respect to said boresight; sensing the azimuth and elevation angles of said stabilized line-of-sight relative to the gun boresight; and slaving the gun barrel in accordance with the orientation of said line-of-sight by employing the azimuth and elevation angles measured by said means for sensing.
Claim 11
Dependent Claim
18 words
The method of claim 8 wherein said system means is rigidly mounted directly on a tank gun mantlet.
Claim 12
Dependent Claim
16 words
The method of claim 8 wherein said system means is directly mounted on the gun barrel.
Claim 13
Dependent Claim
14 words
The method of claim 8 wherein the line-of-sight is stabilized by free gyro stabilization.
Claim 14
Dependent Claim
34 words
The method of claim 8, further comprising the step of operating an autotracker to facilitate aiming and to measure the angular velocity of the line-of-sight when firing on the move and on moving targets.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |